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Short hole drilling inserts and grades

Several parameters must be taken into account when selecting the right insert grade for short hole drilling. Find the right insert grade for your workpiece material, hole diameter, hole depth and required hole quality here.

GC4334

​This peripheral insert grade GC4334 with MT-CVD coating is your first cho​ice in steel and cast iron applications with good to average machining conditions and is a complementary grade for stainless steel. Inveio™​ coating technology provides a high level of wear resistances which results in long tool life.

Benefits and f​eatures​

  • Long and predictable tool life
  • Wear resistant
  • Inveio™ technology


CoroDrill® 880 - High quality holes in one step

CoroDrill® 880 is an indexable drill designed with a strong drill body with central and periphery inserts featuring unique Step Technology™ for perfect balance.

Inveio™ – uni-directional crystal orientation

Tightly packed uni-directional crystals create a strong barrier towards the cutting zone for improved crater and flank wear resistance.

Zertivo™ Technology

Zertivo™ is a unique production technology bringing longer tool life and enhanced security to PVD grades.

CoroDrill® 870 - reliable drilling

This exchangeable tip drill with optimized grade and geometry for steel, stainless steel and cast iron ensures hole quality for the IT9-IT10 intermediate hole tolerance range. CoroDrill® 870 provides high process security and good chip control at high penetration rates.

Find your grade

CoroDrill® 870 CoroDrill® 880 CoroDrill® 881
Steel PGC4234GC4334
GC1044
GC4044
GC1044
Peripheral grade
Central grade
Stainless steel MGC2234GC2044
GC1144
GC2044
GC1144
Peripheral grade
Central grade
Cast iron KGC3234GC4334
GC1044
GC4044
GC1044
Peripheral grade
Central grade
Non-ferrous metals NGC4234H13A/ GC4344
H13A/GC1044
GC4044
GC1044
Peripheral grade
Central grade
HRSA and titanium SGC2234/GC4234GC2044
GC1144
GC2044
GC1144
Peripheral grade
Central grade
Hardened steel HGC4344
GC1044
GC4044
GC1044
Peripheral grade
Central grade

GC1044

​The PVD-coated central grade is your first choice for ISP P, K, H and N materials and provides excellent wear resistance and toughness.

CoroDrill® 880: Indexable insert drill for holes from 12 to 84 mm (0.472-3.307 inch).

CoroDrill® 881: Indexable insert drill for holes from 14 to 23.50 mm (0.562–0.937 inch).

See complet​e assortment

GC1144

First-choice PVD-coated central grade, suitable for all types of stainless steels, HRSA and titanium materials.

CoroDrill® 880: Indexable insert drill for holes from 12 to 84 mm (0.472-3.307 inch).

CoroDrill® 881: Indexable insert drill for holes from 14 to 23.50 mm (0.562–0.937 inch).

See complete assortment

GC2044

For excellent wear resistance in all types of stainless steels, HRSA and titanium use this PVD-oxide coated peripheral grade.

CoroDrill® 880: Indexable insert drill for holes from 12 to 84 mm (0.472-3.307 inch).

CoroDrill® 881: Indexable insert drill for holes from 14 to 23.50 mm (0.562–0.937 inch).

See complete assortment

GC4334

First peripheral grade choice in steel applications with good to average conditions. Inveio™ technology provides a high level of wear resistance.

CoroDrill® 880: Indexable insert drill for holes from 12 to 84 mm (0.472-3.307 inch).

See complete assortment

H13A

Universal, tough and uncoated grade best for low to moderate cutting speeds in ISO N material and is a complementary grade for HRSA and titanium​.

CoroDrill® 880: Indexable insert drill for holes from 12 to 84 mm (0.472-3.307 inch).

See complete assortment

GC4234

Fine-grained cemented carbide substrate with excellent combination of both hardness and toughness with thick multilayered TiAlN coating and optimized residual stress and hardness level.

CoroDrill® 870: Exchangeable-tip drill for holes from 10.00 to 33.00 mm (0.394–1.299 inch).

See complete assortment

GC2234

Tough fine-grained cemented carbide substrate together with thin multilayered TiAlN coating optimized for high edge line security and resistance to adhesive forces when drilling ISO M materials.

CoroDrill® 870: Exchangeable-tip drill for holes from 10.00 to 33.00 mm (0.394–1.299 inch).

See complete assortment

GC3234

​Hard cemented carbide grade with thick multilayered TiAlN coating to provide security and wear resistance needed in ISO-K drilling.

CoroDrill® 870: Exchangeable-tip drill for holes from 10.00 to 33.00 mm (0.394–1.299 inch).

See complete assortment

Complementary grades

GC4324

MT-CVD coated peripheral grade with Inveio™ technology is a productive choice in stable conditions.

View complete ​assortment

GC4044

Fine-grain cemented carbide with PVD TiAIN coating. Tough all-round grade for peripheral drilling in all materials. This grade is the predecessor to grade GC4344 with Zertivo™.

View complete ​assortment

GC4344

PVD-coated peripheral grade with Zertivo™ technology for tough and demanding operations, it provides good-edge line properties and reliable tool life in average to difficult conditions.​

View complete ​assortment

Highlights

Avoiding wear

Insert wear problems like built-up edge, flank wear or chipping can slow down production. Read about tips and tricks on how to avoid these common problems.

Struggling to find the right tool?

Let CoroPlus™ ToolGuide help you get quick and accurate tool recommendations – on all your devices!

Troubleshooting guide

Incorrect hole size, deflection, vibration or insufficient machine torque can disrupt any drilling operation. This troubleshooting guide gives you valuable tips and tricks to help you find your problem and fix it fast.

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